When using a USB webcam on a ThunderX2 workstation, the kernel log gets flooded with messages like xhci_hcd 0000:00:0f.0: WARN Successful completion on short TX for slot 7 ep 2: needs XHCI_TRUST_TX_LENGTH quirk? Enabling the quirk manually makes the issue go away, so let's enable it unconditionally for this hardware. Cc: <stable@xxxxxxxxxxxxxxx> Signed-off-by: Ard Biesheuvel <ardb@xxxxxxxxxx> --- drivers/usb/host/xhci-pci.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 1e0236e90687..331b5900dd72 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -256,7 +256,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) if ((pdev->vendor == PCI_VENDOR_ID_BROADCOM || pdev->vendor == PCI_VENDOR_ID_CAVIUM) && pdev->device == 0x9026) - xhci->quirks |= XHCI_RESET_PLL_ON_DISCONNECT; + xhci->quirks |= XHCI_RESET_PLL_ON_DISCONNECT | + XHCI_TRUST_TX_LENGTH; if (xhci->quirks & XHCI_RESET_ON_RESUME) xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, -- 2.20.1
